نوع مقاله : مقاله ترویجی
کلیدواژهها
موضوعات
عنوان مقاله English
نویسندگان English
Identifying the right sources of pollution, followed up with accurate emission measurement, is the first but the most important step in reducing and controlling greenhouse gases. Methane and carbon dioxide emission of Iranian gas transmission facilities is discussed in this article. All compression stations and transmission pipeline across the country are within the scope of this research. Different emission types (fugitive, vent and combustion) in various operating modes (normal, maintenance, startup and process upsets) were considered and annual emission rates for all identified sources were measured or estimated, based on emission/activity factors methods. Stations age and capacity, type of turbines and compressors and the ratio of capacity to number of runs were considered in statistical analysis. The results revealed 25 emission categories, among which fugitive emission from station valves was the greatest with 37.8% share of total emission. Fugitive emission from blow-downs of launcher-receivers (20.7%), fugitive from above-ground pipelines (12.2%), combustion emission in stations (12.5%) and vent from compressor seals (10.8%) were the other emission sources, respectively.
کلیدواژهها English
مهندسی گاز ایران